不可缺少的

Dr. Morgenstern's indispensable assistance in this regard is gratefully acknowledged.

我们对于莫根施特恩博士在这方面给予的不可缺少的协助深表感谢。

This subject is finished according to the development of SW2000 that is a kind of intellective nilometer.

水位、闸位计广泛应用于石油、化工、冶金、电力、水利、水库、油库、泵站、城市供水等领域的自动检测和控制系统中，是这些领域不可缺少的一种重要工具。

Under the condition mentioned above there are so much disadvantages such as dispersal control equipments, large space occupied, complicated connection, high fault rate and so on which will lead to the suspending power supply to local fans and lead to ventilation to the turnned off planlessly and further result in accumulation of gas.

矿用局部通风机是煤矿井下掘进通风不可缺少的重要设备，使用量大、应用范围广，承担着为采掘工作面提供新鲜风流、排出有毒有害气体和粉尘、改善作业场所环境条件等重要任务，其工作可靠性直接影响着煤矿的安全生产和经济效益。

Orange satyric clear, wines more fragrance, more mellow taste of fresh Gambari, has been scientifically determined, the wine contains 21 kinds of human indispensable amino acids and 24 kinds of trace elements and so on, have a wealth of nutritional value, known as "liquid cake ."

酒色橙黄清澈，酒香更加芬芳馥郁，酒味更加醇厚甘鲜，经科学测定，酒中含有21种人体不可缺少的氨基酸和24种微量元素等，有丰富的营养价值，被誉为&液体蛋糕&。

In specifical content and condition, it is not only nutritious element, but also poisonous element.

氟是人体不可缺少的微量元素之一，在一定的含量和条件下，它可以是营养元素又可以是有毒元素。

R Sriram, chief executive officer of Crosswords Bookstores, a chain of 26 book shops around India, says Indians are extremely entrepreneurial and reading "is a fundamental part of their being".

在印度拥有26家图书连锁店的克劳斯沃兹书店执行总裁斯利拉姆表示，印度人非常具有开创精神，读书是他们生活中不可缺少的一部分。

The crawler crane is a kind of important construction equipment for foundation treatment by forced tamping method.

履带式起重机是强夯地基处理施工中不可缺少的一种主要施工设备，本文列举了履带式起重机在强夯地基处理施工中的常见事故。

The electrochemical oxidation of 1,4-dihydropyridine and its derivatives has beenstudied on Pt electrode in acetonitrile 0.1 mol/L TEAP solution by cyclic voltammetry andbulk electrolysis.

毗院类化合物在新材料的合成、化学制药等方面是不可缺少的原料，''。

Cooling fans are the indispensable parts for ensuring the tranquilization and standing working of electrical motor.

电机的冷却风扇是保证电机稳定、持续工作而不可缺少的部件。

And advertisement is one of the most important ways for people to promote their products. Advertisements have been an unalienable part of people's daily life.

而广告就是人们用来推销自己产品的一种重要途径，而且广告已经成为人们日常生活中不可缺少的一部分。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。